skia2/tests/sksl/shared/TextureSharpen.sksl

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/*#pragma settings Sharpen*/
layout(binding=0) uniform sampler1D one;
layout(binding=1) uniform sampler2D two;
void main() {
float4 a = sample(one, 0);
float4 b = sample(two, float2(0));
float4 c = sample(one, float2(0));
float4 d = sample(two, float3(0));
sk_FragColor = half4(half(a.x), half(b.x), half(c.x), half(d.x));
}